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The scientists use the "silicon" as the negative pole, the battery life of electric vehicles growth
University of Waterloo researchers developed a new generation of battery technology, can produce a stable small size, long battery life, in addition to easy installation of small wearable device, can also be used in electric vehicles. Zhong-wei (sound) is a professor at the University of Waterloo, a chemical engineer, is responsible for the entire project, the research done by a group of graduate students he led the team, said to greatly improve battery performance and service life, far more than the market Lithium Ion Battery. This research has been published in "Nature Communications" magazine.
In theory, the silicon material than the capacity to be much larger than the graphite material. The level of capacity than directly reflects the value of the unit weight of the battery, can emit power. Current commercial lithium-ion batteries are widely used in the negative electrode active material is graphite, the specific capacity of about 360mAh / g. Waterloo chose to use silicon material than the theoretical capacity of a 4200mAh / g, is 10 times more graphite. Zhong-wei said that the life of a single charge which means that an electric car can reach 500 km, and battery electric vehicles than it is now smaller and lighter body weight can be loss.
